Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Stress and fitness in parthenogens: is dormancy a key feature for bdelloid rotifers? |
| Abstract | Background: Bdelloid rotifers are the most common and abundant group of animals that reproduce by ameiotic parthenogenesis, only. They are common in temporally ephemeral habitats, and it is unclear if they dwell in unstable habitats because are excluded from better conditions by stronger competitors, or because they need unstable conditions for their success. We tested the hypothesis that bdelloids 'require' stressful conditions for their persistence by comparing fitness-related traits of stressed ( desiccated, D) and unstressed ( hydrated, H) lines of two species, Adineta ricciae and Macrotrachela quadricornifera. |
| Source | BMC evolutionary biology (Online) 7 |
| Journal | BMC evolutionary biology (Online) |
| Editor | BioMed Central,, London, Regno Unito |
| Year | 2007 |
| Type | Articolo in rivista |
| DOI | 10.1186/1471-2148-7-S2-S9 |
| Authors | Ricci, Claudia; Caprioli, Manuela; Fontaneto, Diego |
| Text | 283713 2007 10.1186/1471 2148 7 S2 S9 ISI Web of Science WOS 000249891300009 Stress and fitness in parthenogens is dormancy a key feature for bdelloid rotifers Ricci, Claudia; Caprioli, Manuela; Fontaneto, Diego University of Milan Background Bdelloid rotifers are the most common and abundant group of animals that reproduce by ameiotic parthenogenesis, only. They are common in temporally ephemeral habitats, and it is unclear if they dwell in unstable habitats because are excluded from better conditions by stronger competitors, or because they need unstable conditions for their success. We tested the hypothesis that bdelloids require stressful conditions for their persistence by comparing fitness related traits of stressed desiccated, D and unstressed hydrated, H lines of two species, Adineta ricciae and Macrotrachela quadricornifera. Results For both bdelloid species, fecundity was significantly lower in H than in parallel D line. Fitness components decreased with time progressively in the H line but not in the D line. Recovery rates of D lines were recorded after every desiccation and did not reveal any trend in time, suggesting that no selection was operating. 7 Articolo in rivista BioMed Central, 1471 2148 BMC evolutionary biology Online BMC evolutionary biology Online BMC evol. biol. Online BMC evolutionary biology Online BioMed Central evolutionary biology Online Evolutionary biology Online diego.fontaneto FONTANETO DIEGO |